Mostly I meant WASM as a platform (waap?) which seems so futuristic to me. I hope one day all OSes can natively run WASM code, though I'm not sold on WASI since then we're back to square one with security it seems.
I'd like to see an Inferno with a WASM runtime that utilizes a Plan 9 like ABI/API instead of WASI. Node9 did similar but with Lua: https://github.com/jvburnes/node9